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H. E. 'WAITE.

ANNUNGIATOR.

No. 325,463. Patented Sept. 1, 1885.

L/ wlikeaaasq N. PETERS. Pholo-Lilmgraphur. Washing! D c UNITED STATESPATENT Gretna.

HENRY E. YVAITE, OF NEWV YORK, N. Y., ASSIGNOR TO CHARLES E.

LIVERMORE, OF SAME PLACE.

ANNUNCIATOR.

SPEGEFEGATION forming part of Letters Patent. No. 325,463, datedSeptember 1, 1885.

application filed July 11, L884. (No model.)

To all whom it may concern:

Be it known that I, HENRY E. W'AITE, a citizen of the United, States,and a resident of the city, county, and State of New York, have inventedcertain new and useful Improvements in Annunciators, of which thefollowing is a specification.

My invention relates to electric ann unciators, and has for its objectto construct a simple, cheap, and effective annunciator that will occupybutlittlc space andbe easily made and placed in position, and at thesame time be accessible for inspection and repairs; and to this end myinvention consists in an annunciator constructed and arranged as moreparticularly pointed out hereinafter.

Referring to the accompanying drawings, forming part of thisspecification, Figure 1 is a side view of the annunciator. Fig. 2 is anend view. Fig. 3 is a section of a board containing several annunciatorsin position, and Fig. 4 is a view of one application of my invention.

One of the chief objects of my invention is to construct an annunciatorthat is compact and powerful, and that may be fitted to a board by verylittle tooling, and that of the simplest nature; and to attain these Iform a magnet, preferably of the horseshoe type, and upon the core a isplaced a coil or helix of insulated V wire, I), which may be wound uponan insulating or nonmagnetic bobbin, 0, of hard rubher or other suitablematerial. From one end of the core, either integral with it or fastenedby any suitable means, springs the other pole or extension of the magnetd, and this is fiat tened and preferably curved, so as to fit closelyover thehelix,and theend may besecured thereto in any suitable manner,if desired. To the front end of this extension is pivoted, or otherwisesuitably fastened, the bar or strip 0, of some suitable material, toform or to carry the armature to the core a of the magnet. One mannor ofattaching it is shown in the drawings, and consists in providing theextension at with two projections, 1 2, between which the bar is hung.The upper end of the bar may be tapered to a point and be slightly bentfor ward, as shown, and the lower end may be circular in form andreceive the number or character designating the drop; or the plate maybe of sheet metal struck up and have a flange or rim for the receptionof a card or plate bearing the designating character.

A shutter or drop, it, is secured to the magnet or coil in such a manneras to normally rest against the upper end of the bar c when the magnetis not energized, that shown consisting of a plate secured to the bobbin0, projecting forward and forming a hinge-joint, f, upon which theshutter freely swings.

If preferred, the designating character of the annunciator may be placedon the inside :of the drop, as shown in dotted lines, so as to beexposed to view when itis down, as shown in Fig. 2.

Projections or lugs g 9 may be made on the front edge of the bobbin, ora plate or band maybe attached to the magnet and be provided with holesfor the reception of screws to more securely hold the annunciator inplace. By this construction it will be seen that the annunciator issubstantially cylindricalin shape; and this is an important feature ofmy invention, as the annunciator may be fitted in place in the board orother position by simply boring a cylindrical hole therein.

In Fig. 3 I have shown one manner of arranging and attaching theannunciator, in which A is a board of a suitable thickness, in

which are formed sockets or holes,which may be bored, the outer one, m,being slightly larger than the inner one, a, and the annunciator magnetmay beinserted therein, as shown, and secured by screws a, passingthrough the lugs or projections g 9 into the base of the outer hole; orthe inner hole or socket may be of such a size that the magnet will fitclosely and require no additional fastenings.

The rear of the socket may be open, so that the line-connections can bemade, the wires preferably being held by screws 0 0, and a plug, 19, maybe used to close the opening to keep out dust, 8m, but to be easilyremoved if access is desired to the magnet.

The annunciator-drops may have suitable lugs or projections on theirbottom parts, and suitable rods may be operated by a crank or lever torestore all the drops simultaneously to their normal position in theusual manner; or each drop may be restored by hand.

The operation of the device is evident from the above. wire 1, passingthrough the coil, energizes the A current coming over the linemagnet,causing the armatures e to be attracted, when the'upper bent end willforce the drop outwardly, causing it to fall and disclose thedesignating character.

By this construction it will be seen that I produce a very economicaldevice, as all the parts may be struck out or forged, requiring littleor no tooling, and they may be made very light and at the same timeeffective, and being so compact they occupy verylittle space. In Fig. 4I have shown atype of switch-boards having a group of annunciator-dropson the board A, and a corresponding series of connectors on the board B,by the use of which a very compact switch-board may be produced.

It is evident that a single bar-magnet may be used in place of thehorseshoemagnet, and the armature be secured to the bobbin or otherpart; but by the use of the horseshoe-' magnet a more powerful andefficient device is obtained.

WVithout limiting myself to the precise details of construction, whichmay be varied without departing from the spirit of my invention, what Iclaim is- 1. An electric annunciator consisting of a horseshoe-magnethaving a bobbin and coil on one pole, the other pole being flattened andbent so as to lie in close proximity to and follow the contour of thecoil as set forth.

2. An electric annunciator consisting of a magnet, a bobbin and coil,one pole of the magnet being flattened, and an armature orarmature-lever connected to the end of the flattened pole, and a pivoteddrop adapted to be operated by the armature, as set forth.

3. In an electric annunciator, the combination, with the magnet andcoil, of an armature pivoted to the flattened end of the magnetcore, andconsisting of a broad flattened end for the reception of the designatingcharacter, and a shutter or drop adapted to be operated by the armature,as set forth.

4. An electric annunciator consisting of a horseshoe-magnet having abobbin and coil on one pole, the other being flattened and arranged inproximity to the coil, an armature or armature -lever pivoted to theflattened pole, a shutter or drop pivoted toa support connected to thebobbin and adapted to be op- U erated by the armature-the whole being arranged so as to be substantially cylindrical in form, as and for thepurpose set forth.

5. The combination, with a board havinga cylindrical socket, of anannunciator adapted to and placed within said socket, and a plug closingthe end of the socket, as and for the purpose set forth.

In testimony whereof Ihave signed my name to this specification in thepresence of two sub scribing witnesses.

HENRY E. \VAITE.

\Vitnesses:

DUNCAN B. CANNON, W. H. WVooDHULL.

